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add TODO 

[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9478]
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parrt 2011-11-27 14:39:29 -08:00
parent 3b7e984d5f
commit eb6443b32b
1 changed files with 1 additions and 0 deletions
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runtime/Java/src/org/antlr/v4/runtime/atn/ATNState.java
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@ -136,6 +136,7 @@ public class ATNState {
//lexer atn sim: getEpTar: 13.2% //lexer atn sim: getEpTar: 13.2%
// ruleCtx.equals 10% // ruleCtx.equals 10%
// TODO: Sam says this takes a lot of time; optimize
public boolean onlyHasEpsilonTransitions() { // 22% time public boolean onlyHasEpsilonTransitions() { // 22% time
if ( epsilonOnlyTransitions>=0 ) return epsilonOnlyTransitions==1; if ( epsilonOnlyTransitions>=0 ) return epsilonOnlyTransitions==1;
if ( transitions.size()==0 ) return false; if ( transitions.size()==0 ) return false;